Rotameter tube O-ring retention



FIG. 1 is a perspective view of a rotameter tube O-ring retentionshowing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a bottom plan view, the top plan view being a mirrored imagethereof;

FIG. 4 is a perspective view of a further embodiment of the rotametertube O-ring retention showing my new design;

FIG. 5 is a front elevational view of a further embodiment view thereof;and,

FIG. 6 is a bottom plan view, the top plan view being a mirrored imageof a further embodiment view there of.

The ornamental design for a “rotameter tube O-ring retention”, as shownand described.